At this point in Donald Trump’s nightmare of a presidency, it’s hard to believe that even after spending 9 months in the White House, he still knows just as little about how America works as he did when he first walked in.

Trump has demonstrated time and time again that he is completely blind in his role as POTUS and is clueless about most of the things a president must deal with – such as basic economics. In a recent interview, Trump showed America just how stupid he is when he exposed his weaknesses in an interview with Sean Hannity.

When the hosts of MSNBC’s Velshi and Ruhle watched footage from this interview, they were absolutely appalled and shocked that Trump claimed that a rising stock market could actually reduce the national debt. During their segment, the two economic experts tore Trump apart – and it was pretty damn brilliant.

Ruhle pointed out that Trump failed at what is pretty much common sense:

Wrong! The businessman president just flunked a basic finance test and his key interviewer did as well. The stock market has nothing to do with the U.S. debt, which continues to go up, not down, despite the president’s best wishes. And I want to remind our viewers that there are only two ways to bring down the national debt: Either we cut spending or raise taxes. And guess what we’re doing? Neither of those things. The president, he wants to cut taxes across the board, which could add another $2.7 trillion to national debt over the next 10 years.”

Velshi was quick to point out that Trump frequently brags about how successful he is in business – but he seems extremely unaware of how things work. Velshi said:

Yeah, this is a weird one because either the president – he’s a businessman so he can’t not know this is the case, so the assumption becomes that that was deliberately false. But let’s say he didn’t know. Let’s say he actually thinks that the stock market increasing, which is private money that goes to companies and their shareholders, somehow relates to the debt then I don’t know what’s worse, that he was being misleading or that he didn’t know. … Here’s the thing about the stock market. If the president wants to take credit for that $5 trillion since he’s become president, let’s actually look at the stock market going back to when it bottomed out in March of 2009. … That looks like a pretty straight line to me, so if you want to blame the Obama administration for all that debt, give them credit for all that growth.”

Ruhle came in with another brutal fact check for Trump:

It has been a 113-month rally, and last time I checked, the president hasn’t been in office that long.”

One thing that Trump should be strongly criticized for is the way he has taken credit for the accomplishments of former President Barack Obama. Trump has patted himself on the back for a rising stock market and shrinking unemployment rate – both of which have nothing to do with him. Yet when he was running for president, Trump trashed the economy under Obama.

Trump deserves to be condemned for his lack of understanding in one of the most important areas he must lead during his presidency. This interview pretty much signals that we are doomed.

You can watch a clip of the most troubling bits – and MSNBC’s response – below: